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Global warming issue is confusing! Today human factor seems to be considerable, but people have enjoyed wormer times in the past. Is global warming really such a grave danger?
How long would a river be if it could be straighten like a rope?
Why is the sky blue?
Why is the Earth round?
Why is the ocean salty?
Abstract.In science, there are some cases, where we cannot intervene making any analysis in order to monitor certain causeand-effect relationship. Then we have to apply the approac

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Why is the ocean salty?

... Actually, lakes with no outlet to seas and oceans do have higher saltiness then other lakes.

Why is the sky blue?

... The atmosphere is mostly nitrogen which does not absorb visible light in the blue range.

Abstract.In science, there are some cases, where we cannot intervene making any analysis in order to monitor certain causeand-effect relationship. Then we have to apply the approac

...Abstract.In science, there are some cases, where we cannot intervene making any analysis in order to monitor certain causeand-effect relationship. Then we have to apply the approac

Global warming issue is confusing! Today human factor seems to be considerable, but people have enjoyed wormer times in the past. Is global warming really such a grave danger?

...You don't enjoy the heatwave if you've seen one. Also, no matter what's the reason, we know the temperature is rising. Human don't like to think about how weak they are, human would like to believe...

Why is the Earth round?

... When you point a laser horizontally holding it 1m from the ground, and detect few miles away, you will have to hold detector higher than 1m because of the curved surface.